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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef WebSelection_h |
| 6 #define WebSelection_h |
| 7 |
| 8 #include "../platform/WebCommon.h" |
| 9 #include "../platform/WebSelectionBound.h" |
| 10 |
| 11 namespace blink { |
| 12 |
| 13 struct CompositedSelection; |
| 14 |
| 15 // The active selection region, containing compositing data for the selection |
| 16 // end points as well as metadata for the selection region. |
| 17 class BLINK_EXPORT WebSelection { |
| 18 public: |
| 19 enum SelectionType { NoSelection, CaretSelection, RangeSelection }; |
| 20 |
| 21 #if INSIDE_BLINK |
| 22 explicit WebSelection(const CompositedSelection&); |
| 23 #endif |
| 24 WebSelection(const WebSelection&); |
| 25 |
| 26 const WebSelectionBound& base() const { return m_base; } |
| 27 const WebSelectionBound& extent() const { return m_extent; } |
| 28 const WebSelectionBound& start() const { return isBaseFirst() ? base() : ext
ent(); } |
| 29 const WebSelectionBound& end() const { return isBaseFirst() ? extent() : bas
e(); } |
| 30 |
| 31 bool isNone() const { return selectionType() == NoSelection; } |
| 32 bool isCaret() const { return selectionType() == CaretSelection; } |
| 33 bool isRange() const { return selectionType() == RangeSelection; } |
| 34 |
| 35 bool isBaseFirst() const { return m_isBaseFirst; } |
| 36 bool isEditable() const { return m_isEditable; } |
| 37 bool isEmptyTextFormControl() const { return m_isEmptyTextFormControl; } |
| 38 |
| 39 private: |
| 40 SelectionType selectionType() const { return m_selectionType; } |
| 41 |
| 42 SelectionType m_selectionType; |
| 43 |
| 44 WebSelectionBound m_base; |
| 45 WebSelectionBound m_extent; |
| 46 |
| 47 // Whether |m_base| comes before |m_extent| in document position order. |
| 48 bool m_isBaseFirst; |
| 49 |
| 50 // Whether the selection region consists of editable text. |
| 51 bool m_isEditable; |
| 52 |
| 53 // Whether the selection resides in an empty text form control. Note that |
| 54 // this only applies to caret-type selections. |
| 55 bool m_isEmptyTextFormControl; |
| 56 }; |
| 57 |
| 58 } // namespace blink |
| 59 |
| 60 #endif // WebSelection_h |
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